Fuzzy data compression based on data dependencies

✍ Scribed by Z. M. Ma; W. J. Zhang; F. Mili

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 139 KB
• Volume: 17
• Category: Article
• ISSN: 0884-8173
• DOI: 10.1002/int.10029

✦ Synopsis

In this article, we focus on the issues of fuzzy data dependencies. After introducing the notion of semantic equivalence degree, fuzzy functional and multivalued dependencies are defined. A set of sound and complete inference rules, similar to Armstrong's axioms for classic cases, for fuzzy functional dependencies (FFDs) and fuzzy multivalued dependencies (FMVDs) are proposed. The strategies and approaches for compressing fuzzy values by FFDs and FMVDs are investigated. By such processing, the unnecessary elements are eliminated from a fuzzy value and its range is compressed.